When I first read this story I thought No way.

In December, the car-parts retailer AutoZone became the most recent employer to fire a worker for taking action widely admired -- but prohibited in the workplace because of the company's fear of liability. Devin McLean and his store manager in York County, Va., were herded into a back room by a gun-wielding holdup man and, being the only witnesses, understandably feared for their lives. However, McLean broke free, ran to his truck, and retrieved his gun. (He could have fled altogether but insisted that, morally, he could not abandon his colleague.) When McLean re-entered pointing his Glock 40, two things happened: (1) The robber fled, and (2) McLean became in violation of AutoZone's "zero tolerance" policy against employees bringing firearms into the store. Two days later, he was fired. [Fox News, 12-4-2012]
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"If something's difficult to learn son, then it's really not worth doing."

Homer Simpson